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    CVE-2024-8309

    A vulnerability in the GraphCypherQAChain class of langchain-ai/langchain version 0.2.5 allows for SQL injection through prompt injection. This vulnerability can lead to unauthorized data manipulation, data exfiltration, denial of service (DoS) by deleting all data, breaches in multi-tenant security environments, and data integrity issues. Attackers can create, update, or delete nodes and relationships without proper authorization, extract sensitive data, disrupt services, access data across different tenants, and compromise the integrity of the database.

    Published:Oct 29, 2024
    Last Modified:Oct 15, 2025
    EPS:Oct 29, 2024
    EPSS Score:0.00633
    CVSS Score:9.8

    Affected Products

    Vendor
    Langchain
    Product
    Langchain
    Vendor
    Langchain-ai
    Product
    Langchain

    Exploits

    https://huntr.com/bounties/8f4ad910-7fdc-4089-8f0a-b5df5f32e7c5https://github.com/liadlevy/CVE-2024-8309

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-10 Buffer Overflow via Environment Variables
    CAPEC-101 Server Side Include (SSI) Injection
    CAPEC-105 HTTP Request Splitting
    CAPEC-108 Command Line Execution through SQL Injection
    CAPEC-109 Object Relational Mapping Injection
    CAPEC-110 SQL Injection through SOAP Parameter Tampering
    CAPEC-120 Double Encoding
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-135 Format String Injection
    CAPEC-14 Client-side Injection-induced Buffer Overflow
    CAPEC-24 Filter Failure through Buffer Overflow
    CAPEC-250 XML Injection
    CAPEC-267 Leverage Alternate Encoding
    CAPEC-273 HTTP Response Smuggling
    CAPEC-28 Fuzzing
    CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
    CAPEC-34 HTTP Response Splitting
    CAPEC-42 MIME Conversion
    CAPEC-43 Exploiting Multiple Input Interpretation Layers
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-46 Overflow Variables and Tags
    CAPEC-47 Buffer Overflow via Parameter Expansion
    CAPEC-470 Expanding Control over the Operating System from the Database
    CAPEC-51 Poison Web Service Registry
    CAPEC-52 Embedding NULL Bytes
    CAPEC-53 Postfix, Null Terminate, and Backslash
    CAPEC-6 Argument Injection
    CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic
    CAPEC-66 SQL Injection
    CAPEC-67 String Format Overflow in syslog()
    CAPEC-7 Blind SQL Injection
    CAPEC-71 Using Unicode Encoding to Bypass Validation Logic
    CAPEC-72 URL Encoding
    CAPEC-76 Manipulating Web Input to File System Calls
    CAPEC-78 Using Escaped Slashes in Alternate Encoding
    CAPEC-79 Using Slashes in Alternate Encoding
    CAPEC-8 Buffer Overflow in an API Call
    CAPEC-80 Using UTF-8 Encoding to Bypass Validation Logic
    CAPEC-83 XPath Injection
    CAPEC-84 XQuery Injection
    CAPEC-9 Buffer Overflow in Local Command-Line Utilities

    Related CVEs

    CVE-2026-44843 (CVSS 8.2) — LangChain is a framework for building agents and LLM-powered applications. Prior to 0.3.85 and 1.3.3, LangChai…
    CVE-2026-30617 (CVSS 8.6) — LangChain-ChatChat 0.3.1 contains a remote code execution vulnerability in its MCP STDIO server configuration …
    CVE-2024-58340 (CVSS 8.7) — LangChain versions up to and including 0.3.1 contain a regular expression denial-of-service (ReDoS) vulnerabil…
    CVE-2025-67644 (CVSS 7.3) — LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync a…
    CVE-2025-64439 (CVSS 7.4) — LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync a…
    CVE-2025-64104 (CVSS 7.3) — LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync a…
    CVE-2025-8709 (CVSS 7.3) — A SQL injection vulnerability exists in the langchain-ai/langchain repository, specifically in the LangGraph's…
    CVE-2025-9556 (CVSS 9.8) — Langchaingo supports the use of jinja2 syntax when parsing prompts, which is in turn parsed using the gonja li…
    CVE-2025-45150 (CVSS 9.8) — Insecure permissions in LangChain-ChatGLM-Webui commit ef829 allows attackers to arbitrarily view and download…
    CVE-2025-46059 (CVSS 9.8) — langchain-ai v0.3.51 was discovered to contain an indirect prompt injection vulnerability in the GmailToolkit …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High